Having trouble diagnosing the spark plug. Don't really know what it means or what's going on
This Is how #2 and 3 cylinders look it's like black stain climbing to the spark plug




#1 and 4 spark plugs does not look like this at all. It looks normal without the black stain looking thing


Any help appreciated

 

you're running rich/burning oil.

 

^well yea haha

Is any smoke coming out of your exhaust tip?

Do you smell burnt fuel or burnt oil?
Blue smoke would be burning oil
And black smoke would be burning fuel